MOTU Micro Lite [40/166] The mappings tab

CLOCKWORKS FOR MAC OS X

THE MAPPINGS TAB

The Mappings tab controls the channelizing of MIDI data

on all MIDI IN and MIDI OUT cables. With complete

ﬂexibility, this window can switch data from its current

MIDI channel to any other channel immediately when the

data either enters or exits your MOTU interface.

Figure 5-7: The Mappings tab. Use the Input/Output and Cable menus to

display the desired input or output cable. For each channel (row), click the

check box corresponding to the channel you wish to remap it to.

Mapping basics

A simple way to think of channel mapping is this: imagine

that each MIDI IN or MIDI OUT port connected to your

MOTU interface has a ﬁlter just inside the socket. MIDI

data enters the ﬁlter on one channel and as it passes

through the ﬁlter, it gets switched to a different channel.

On a MIDI IN port, data enters on a given channel. But

before it goes anywhere else, either to the computer or to a

MIDI OUT cable, the Channel Map window can switch

the data to a different MIDI channel.

On a MIDI OUT cable, data exits the interface. But before

it does, the Channel Map window can switch the data to a

different channel.

Using channel mapping

Channel Mapping like this is useful in many different

situations. For example, you may have a MIDI keyboard

that only transmits data on MIDI channel 1. If you want to

transmit its data on a different channel, you can map

channel 1 on the keyboard’s MIDI IN cable to any other